8 Commits (2cfc7b244a69af357a62c933f772db85f8a117ac)

Author	SHA1	Message	Date
Matthieu MOREL	d496687c8e	golangci-lint: enable usestdlibvars linter ... Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>	8 months ago
Łukasz Mierzwa	5597020a60	Use github.com/klauspost/compress for gzip and zlib ... klauspost/compress is a high quality drop-in replacement for common Go compression libraries. Since Prometheus sends out a lot of HTTP requests that often return compressed output having improved compression libraries helps to save cpu & memory resources. On a test Prometheus server I was able to see cpu reduction from 31 to 30 cores. Benchmark results: name old time/op new time/op delta TargetScraperGzip/metrics=1-8 69.4µs ± 4% 69.2µs ± 3% ~ (p=0.122 n=50+50) TargetScraperGzip/metrics=100-8 84.3µs ± 2% 80.9µs ± 2% -4.02% (p=0.000 n=48+46) TargetScraperGzip/metrics=1000-8 296µs ± 1% 274µs ±14% -7.35% (p=0.000 n=47+45) TargetScraperGzip/metrics=10000-8 2.06ms ± 1% 1.66ms ± 2% -19.34% (p=0.000 n=47+45) TargetScraperGzip/metrics=100000-8 20.9ms ± 2% 17.5ms ± 3% -16.50% (p=0.000 n=49+50) name old alloc/op new alloc/op delta TargetScraperGzip/metrics=1-8 6.06kB ± 0% 6.07kB ± 0% +0.24% (p=0.000 n=48+48) TargetScraperGzip/metrics=100-8 7.04kB ± 0% 6.89kB ± 0% -2.17% (p=0.000 n=49+50) TargetScraperGzip/metrics=1000-8 9.02kB ± 0% 8.35kB ± 1% -7.49% (p=0.000 n=50+50) TargetScraperGzip/metrics=10000-8 18.1kB ± 1% 16.1kB ± 2% -10.87% (p=0.000 n=47+47) TargetScraperGzip/metrics=100000-8 1.21MB ± 0% 1.01MB ± 2% -16.69% (p=0.000 n=36+50) name old allocs/op new allocs/op delta TargetScraperGzip/metrics=1-8 71.0 ± 0% 72.0 ± 0% +1.41% (p=0.000 n=50+50) TargetScraperGzip/metrics=100-8 81.0 ± 0% 76.0 ± 0% -6.17% (p=0.000 n=50+50) TargetScraperGzip/metrics=1000-8 92.0 ± 0% 83.0 ± 0% -9.78% (p=0.000 n=50+50) TargetScraperGzip/metrics=10000-8 93.0 ± 0% 91.0 ± 0% -2.15% (p=0.000 n=50+50) TargetScraperGzip/metrics=100000-8 111 ± 0% 135 ± 1% +21.89% (p=0.000 n=40+50) Signed-off-by: Łukasz Mierzwa <l.mierzwa@gmail.com>	9 months ago
Julien Pivotto	d19fa62476	Revert "Improving Performance on the API Gzip Handler (#12363)" ... This reverts commit dfae954dc1. Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>	1 year ago
Alan Protasio	dfae954dc1	Improving Performance on the API Gzip Handler (#12363) ... Using github.com/klauspost/compress package to replace the current Gzip Handler on the API. We see significant improvements using this handler over the current one as shown in the benchmark added. Also: * move selection of compression from `newCompressedResponseWriter` to `*CompressionHandler.ServeHTTP`. * renaming `compressedResponseWriter` since it now only does one kind of compression. Signed-off-by: Alan Protasio <alanprot@gmail.com>	2 years ago
Matthieu MOREL	e2ede285a2	refactor: move from io/ioutil to io and os packages (#10528) ... * refactor: move from io/ioutil to io and os packages * use fs.DirEntry instead of os.FileInfo after os.ReadDir Signed-off-by: MOREL Matthieu <matthieu.morel@cnp.fr>	3 years ago
Paweł Szulik	f5563bfe95	tests: Move from t.Errorf and others. (Part 2) (#9309) ... * Refactor util tests. Signed-off-by: Paweł Szulik <paul.szulik@gmail.com>	3 years ago
Simon Pasquier	f678e27eb6	*: use latest release of staticcheck (#5057) ... * *: use latest release of staticcheck It also fixes a couple of things in the code flagged by the additional checks. Signed-off-by: Simon Pasquier <spasquie@redhat.com> * Use official release of staticcheck Also run 'go list' before staticcheck to avoid failures when downloading packages. Signed-off-by: Simon Pasquier <spasquie@redhat.com>	6 years ago
Tariq Ibrahim	a188693015	Adding unit tests for the util package (#4534) ... Signed-off-by: Tariq Ibrahim <tariq.ibrahim@microsoft.com>	6 years ago